Start by classifying secrets by business criticality, lifetime, and exposure path. Replace the highest-risk shared credentials with workload identity or short-lived access first, then connect revocation to ownership and offboarding. The goal is not zero secrets overnight, but fewer reusable secrets and fewer places where they can be copied or forgotten.
Why This Matters for Security Teams
secrets sprawl is not just an inventory problem. Every extra API key, token, certificate, or shared password increases the number of places an attacker can reuse access, and every copy adds another revocation path to coordinate. GitGuardian’s The State of Secrets Sprawl 2025 found that 4.6% of public GitHub repositories contain at least one hardcoded secret, which underscores how quickly credentials escape intended controls once they enter delivery workflows.
Teams usually get into trouble when delivery speed depends on static secrets that are copied across pipelines, test environments, and team channels. That creates hidden coupling: one compromised credential can affect build systems, deployment tools, and downstream services. The practical objective is to reduce reuse first, then reduce lifetime, then reduce where secrets can be viewed or exported.
In practice, many security teams discover sprawl only after a leaked credential has already been reused outside its original pipeline.
How It Works in Practice
The least disruptive way to reduce sprawl is to treat secrets by risk, not by volume. Start with the credentials that are shared, long-lived, broadly scoped, or difficult to trace back to an owner. Those are the ones that most often block delivery during incidents because nobody is sure where they are used.
A workable rollout usually follows four moves. First, classify secrets by criticality, lifetime, and exposure path. Second, replace reusable credentials in CI/CD, service-to-service calls, and cloud workloads with workload identity and short-lived access where possible. Third, use just-in-time issuance so the secret exists only for the task or session that needs it. Fourth, bind revocation to ownership, service accounts, and offboarding so cleanup happens automatically instead of through manual search.
This approach aligns with the direction of the OWASP Non-Human Identity Top 10, especially where static credentials persist in machine workflows. NHI Management Group’s Guide to the Secret Sprawl Challenge is useful for framing the operational side: the issue is not only secret count, but also duplication, discoverability, and slow revocation. For implementation detail, teams should prefer cryptographic workload identity patterns such as SPIFFE or OIDC-style federation, because they reduce the need to distribute durable shared secrets at all.
- Move the most reused credentials first, not the easiest ones.
- Prefer short TTLs for machine access that can be reissued automatically.
- Keep a clear owner for every secret that still must exist.
- Log issuance and revocation so cleanup is auditable.
These controls tend to break down in legacy batch jobs and third-party integrations that cannot refresh identity dynamically because the application was built around a single shared credential.
Common Variations and Edge Cases
Tighter secret controls often increase rollout effort, so organisations have to balance reduced blast radius against short-term integration work. That tradeoff is real in release pipelines, vendor connectors, and older apps that assume static credentials are easier to operate.
There is no universal standard for this yet, but current guidance suggests handling exceptions explicitly rather than letting them become permanent. For example, some legacy systems may need a transitional shared secret while adjacent services move to workload identity. In those cases, the secret should be time-bound, closely monitored, and isolated to the smallest possible scope.
Secrets also behave differently across environments. Development teams may accept more frequent rotation if automation is strong, while production systems need stricter revocation paths and stronger ownership mapping. NHI Management Group’s Ultimate Guide to NHIs — Static vs Dynamic Secrets is especially relevant here because the operational win comes from converting repeatable secret use into repeatable identity issuance. The hardest cases are partner integrations and air-gapped workflows, where delivery teams often keep static credentials alive long after the original migration window has closed.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 address the attack and risk surface, while NIST CSF 2.0 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Addresses rotation and lifecycle control for reusable non-human secrets. |
| NIST CSF 2.0 | PR.AC-1 | Covers identity and credential management needed to shrink sprawl safely. |
| NIST AI RMF | GOVERN | Useful where automated delivery systems and AI-assisted workflows manage secrets. |
Inventory secrets, reduce shared credentials, and automate rotation and revocation for every non-human identity.
Related resources from NHI Mgmt Group
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on June 25, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
